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in rails, how to validate a fields which is NOT uniqueness?
| Author | Votes | Δ |
|---|---|---|
| Salil | 5 | 0.00 |
Last visited: Sep 14, 2014, 5:07:29 AM
| Author | Votes | Δ |
|---|---|---|
| Salil | 5 | 0.00 |